Catalog Search Results
Publisher
WGBH Boston Video
Pub. Date
2009.
Physical Desc
1 DVD (56 min.) : sound, color ; 4 3/4 in.
Language
English
Description
"Nova investigates a provocative new theory that suggests the extinction of more than 34 types of large prehistoric mega-creatures, such as the saber-toothed cat and woolly mammoth, was caused not by climate change or the arrival of the first human hunters, but by the massive breakup of a comet over the Great Lakes region at the end of the last Ice Age, some 12,900 years ago." WGBH/Nova website.
Interlibrary loan through ILLiad
Didn't find what you need? Items not owned by Knox County Public Library can be requested from other libraries to be delivered to your pickup location.
Suggest a purchase
If it is too new for interlibrary loan (6 months), you can place a suggestion with us. Suggest a Purchase